Comparison

TetraScience vs StackChan World

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

TetraScience

TetraScience mobile app

Come and visit StackChan World

Free

🔧 Utilities

★ 1.813 ratingsView app →

About

TetraScience

Features

Read full description

The TetraScience mobile application to support you on weighing process.

About

StackChan World

This app connects to a cute, AI-powered desktop robot. It unlocks additional fun and functionality for the robot, which features open-source hardware and software. Users can pair their device to enhance their robot experience.

Highlights

Connect to AI robot
Unlock additional robot fun
Open-source hardware and software integration
Pair with your robot

Features

Read full description

·_· StackChan is a super cute desktop robot co-created by M5Stack and the user community. It is powered by AI, and all the hardware and software is open-source. Download the app, pair with your StackChan, and get more fun!

Screenshots

TetraScience2 screens

StackChan World4 screens

Verdict

The call

The clearest difference is iOS requirement: TetraScience at 13.4 against StackChan World's 16.4. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TetraScience ships an update every 9 days, StackChan World weekly. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

Scorecard1 real difference · 9 level

TetraScience versus StackChan World: the parameters behind the verdict, then further details
Parameter	TetraScience	StackChan World
Price	Free	Free
Rating	—	1.8 (13 ratings) — better
Positive reviews	—	33.3% of reviews
Number of ratings	—	13 — better
Update frequency	Every 9 days	Weekly — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPad, iPod — better	iPhone, iPad
Requires iOS	13.4 — better	16.4
Further details — not scored
Size	105 MB	160 MB
Age rating	4+	4+
Developer	TetraScience Inc.	M5Stack Technology Co., Ltd.

In-app purchases

None

TetraScience

No in-app purchases

None

StackChan World

No in-app purchases

Questions

Is TetraScience free?

TetraScience is free to download, with no in-app purchases.

Is StackChan World free?

StackChan World is free to download, with no in-app purchases.

Do TetraScience or StackChan World have ads?

Neither TetraScience nor StackChan World shows ads.

Which is updated more often, TetraScience or StackChan World?

TetraScience ships an update every 9 days, and StackChan World weekly. Most recently, TetraScience was updated on November 4, 2026 and StackChan World on November 9, 2026.